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Hebei Hankai double lip wiper seal

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    The percentage of an oil seal refers to its ability to effectively prevent leakage. A higher percentage indicates a better sealing capacity, with 100% being the ideal value. However, in reality, achieving a perfect seal is often challenging. Therefore, oil seals with percentages ranging from 25% to 35% are commonly used in applications where a high level of sealing performance is required.
    Another factor that can contribute to oil seal failure is contamination. Around 47% of oil seals fail due to contamination by dirt, debris, or other particles. This can cause the seal to wear out quickly and lose its effectiveness. Regularly cleaning and inspecting the seals can help prevent contamination and prolong their lifespan
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    25 47 7 oil seal.